Electric doorlock



March 14, 1933. BEAL v 1,901,721

ELECTRIC. DOORLOCK Filed Jan. 27, 1930 s Sheets-Sheet 1v March 14, 1933.

F. BEAL ELECTRIC DOORLOCK Filed Jan. 27, 1930 s Sheets-Sheet 2 llillllllllllllflllllll|| gg x fiqa/ March 14, 1933. BEAL 1,901,721

ELECTRIC DOORLOCK Filed Jan. 27,- 1930 3 Sheets-rSheet 5- Patented 14,1833.

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UNITE-D STATES- PAT NT OFFICE IA! mun, or more, mnms, ABSIGIIOB r0 mesron rnonnc'ra conronarron, o

xoxolro, tannin, a comm-non or nmuuu 2 nncrnrc nooanocx Application use January at, wee. amuse. mass? This invention relates to improved and simplified means for simultaneously lockmg and unlocking a plurality of doors from one or more control points, and has special referenoe to locking the doors of a vehicle.

It is'one object of this invention to rovide an im roved multiple door lock 0 the class descri I which may be set for lockmg prior to emerging from a.vehicle,fthe closof the door 0 exit serving to'autom'atica y lock the same. As a corrollary to th s object the hereinafter disclosed structure 1s temporarily released from lnside the vehic e whi e remain locked as to external attempts at entry, t e locking mechanism being unafl'ected by opening the door from the inside. fers important advantages, since" the latches maybe set in their locked tlon upon entering the vehicle so that thedoors upon .exit there-.

are automatically locked from.

, .It is another object of this invention to F provide an improved device of the class described. operated by, an electrical mechanism, together witha manual release for one door so that in the event that the vehicle battery becomes run down, entry may still be made. with a straight electrical system, a broken wire or run downbatte might prevent Ho'pening of the doors wi' the consequent necessity of forcible en i It is also an object of this invention to rovide an improved locking and unloc g mechanism of the class described, wherein a master lock associated with one door, has.

mechanical unlocking means associated therewith and is connected with electrically ener gized lockin and unlocking mechanisms associated the other doors, wherebyfthe. door latching will be controlled by the, master lock.

The present invention is in part" an im provement over that shown in my co-pendmg application, Serial No. 401,053, filed,

October 21,192

Otherand further important objects (is this invention will be ap closures in the specification and accompanying drawings.

arrangementofsition.

mechanisms of all the doors" parent fromthe dis- The invention (in a lustrated on the drawmgs and hereinafter morefully .described. a 1 On the drawings:

Figure 1 is a plan view of a door locking .and unlocking mechanism to which a master lock embodying features of this invention has been applied.

) igure'7 is an enlarge on the line VIIVII of Figure 1.

Figure 8 is an enlar ed fragmental section on the line VIII-VI of Figure 1.

on the line IX-IX of Figure 10 is an enlar ed fragmental section on the line I'X-IX o Figure 8 in unlocked posltlon.

, As shown on the drawings The present invention is intended to be an addition to a mechanical door lock or latch mechanism, to operate a plurality of locks in unison fromone or more points. Broadly the mechanical lock mechanism comprises a base plate 15 having a flanged edge 16 through which a. sprin urged latch bolt 17 projects to engage. a stri e plate mounted in the door pillar or'fra-me. This latch bolt is beveled on the inside and is retractable regardless of whether the door mechanism is locked or not so that the mechanism can beset to lock without interferin with the opening of the door from thein'si e by means of suitable mechanis rnndn aging a stud 18 on a slidable plate 19 'mo'u te over a second plate 20 having an upstanding ear 21 engaged bya cam 22 exterigure 8 in locked pofragmehtal section on the line VI-VI of igure 2.

fragmental section I Figure 9-is an enlarglgd fragmental section preferred form) is il- 6.5, system controlling three door locks nallg operated by the usual door handle or kno 23, similar to that shown in FigureS as associated with a master lock finder 24, op-

Y 'erated by a key 25. Either o the lates 19 and 20 is ada ted to retract the late bolt 17 when the latc 26 is in its upper or unlocked position but when the latch 26 is in the lower or locked position the second late 20 is movable but will not'retract the atch bolt 17 so that the door is locked as regardsthe external handle; although the latch bolt can still be second plate 20 and this is acted upon b the movement of the plate 20 to retract the atch bolt 17 when the plate 20 is moved by the ban .dle 23 and cam 22. i This latch 26 is urged upwardly by a spring 28 therebeneath and since it is necessarily movable with the plate 19 the sprin is supported by an elongated bracket 29. he downward or looking movement'of the latch 26 is accomplished by a pin 30 engaged between the latch 26 and a" slot in a lever31 pivoted at 32, this lever being tilted counterclockwise by an electromagnet or solenoid 33 acting on an armature 34 associated with the lever 31. In order to hold the lever in its set position a detent solenoid 35 controls the retraction of a spring ur ed detent lever detent solenoid 35; All the detent solenoids 36 engaging either above or elow a suitably formed lug 37 associated with the lever 31, the

retraction ofthe detent permitting movement of the lever. The above described structure is common to both the master locks of Figures 2 and 3, the-latter two figures showing the lever and latch positions for the unlocked and locked positions.

The controlled locks of Figures 2 and 3 are further provided with an unlocking solenoid 38 oppositely disposed relative to the armature 34 to act thereon to move the lever 31 clockwise into its unlocked position.

The master lock of Figure 1 is provided with a cover plate 39 over the plate 20,

throu h which plate 39 the tubular shank 40 of the andle 23 projects. This handle of the shank contains a rotatable extension 41 connecting the lock cylinder 24to a reciprocating bar 42 actuated by an eccentric pin 43 in the end of the extension, so that a partial rotation of the lock cylinder serves to project the bar 42 from the top or bottom of the shank as viewed in Fi re 1.

in Figure 9, it presses a lever 44 into contact with a grounding bracket 45, the lever being connected by a wire 46 to the winding of the are interconnected by wires 47 as shown in the wiring diagram of Figure 4, and the-wires strike 47 are in turn connected by 'a wire 48 to a battery 49. The op osite terminal of the battery 'may be groun ed as is customary but in the'wiring diagram the ground is represented by' the wiring 50 leading to the switch lever 51 representing the bar 42. v

In the case of themaster lock of Figure 1,. no unlockin solenoid'is provided since the latch 26 wil en age plate '20 when the de tent is released ue to the spring. ,The wire 46 is also connected by a wire 52 to the terminals 53 of the unlocking solenoids 38. The

downward movement of the bar 42 as shown in Figure "10 actuates a mechanical detent release and also makes electrical contact with a lever 54 mounted on an insulated base 55 and connected by wiringl solenoid 33, this wiring aving branches 5 connectin to the terminals 58 of the other looking so enoids. In each case, the unlock ing and locking solenoids are jointly connected in series with their common detent solenoids which are in turn interconnected by the wires 47 as previously described.

The mechanical etent release mentioned 56. to the locking heretofore comprises-a vertically sliding member 59 adapted to be pushed downwardly by the lock bar 42, the downward movement thereof being transmitted by a bell crank lever 60 to a rod 61 having a hook 62'engaging in an apertured lug 63 on the detent lever 36 to retract the same.- This hooked rod 61 is so formed as not to interfere with the normal electrically controlled movement of the detent lever, but serves to mechanically release the same in the case a run down battery fails to pull the detent free of the locking lever lug 37 to permit the unlocking movement thereof. Thus the unlocking solenoid 38 on the masterlock is optional and might be omitted for the purpose of cheaper construction.

A push button 64 is connected by wires 65 and 66 between the locking contact 44 and the battery return 50 to be in parallelwith the locking circuit to in effect short circuit the switch. By'pressing on this push button at any time, all the doors will be set in locked position, relative to the, external operating mechanism, so that while the doors can still be opened from the inside, as when leaving the vehicle, the reclosingof the door automatically locks the same against re-entry except by the operation of the master key lock.

The push buttonmay be mounted on one of the door pillarsor on the instrument board and is much more convenient in operation than the use of a key lock. When the ar 42 moves upwardly as shown It will thus be seenthat the present invention comprises an improved and simplified multiple door locking system that may be controlled from one or more points and may be pre-set for locking, permitting free exit thereafter but automatically being locked against entrance.

I am aware that numerous details of construction may be varied through a wide ran without departing from the principles of the handles from said latches to prevent latch releasing movement ther by, means for electrically actuating said in rlock means to set and released ositions, a master lock, means associated with said master lock for temporarily connecting the electrically actuating means to the source of electrical energy when the master lock is actuated, means operably connecting the inside handles to the latch elements whereby each latch may be individually retracted when said outside handles are operably disconnected from said latches.

2. In combination with a plurality of door locks for an automobile, each of said locks including a latch element, an outside and an inside operating handle therefor, a source of electrical energy, interlock means adapted when set 'to operably disconnect said outside handles from said latches to prevent latch position for oplegably disconnecting sai releasing movement, thereby for electrically actuating said interlock means to set and released positions, a master lock, means associated with said master lock for temporarily connecting the electricall actuating means to the source of electricaenergy when the master lock is actuated, means operabl connecting the inside handles to the late elements whereby each latch may be individually retracted when said outside handles are operably disconnected from said latches, and

means actuated by said master lock for inechanically releasing the interlock means in one of said locks. 1 t

3. Door lockingnmeans for simultaneously locking and unloc g several doors, com rising in combination with manual door latc g mechanisms including latch elements, outside and inside latch actuating handles, shiftable interlock means adapted to be interposed in said mechanisms to o rably connect said outside handles to sai means adapted to be shifted to disengage? 'ou side handles In said latches, a source of electrical energy, locking and unlocking solenoids cooperating with said means to shift the same into operative and disengaged 1- tions, a master lock, means associated t erewith adapted to momentarily complete the circuit through said source of electrical enlatch elements, said 7 and means operably connect latch operating handles to 8 21% ments whereby the same ma when operably disconnected rom said outside handles.

4. Door lockin means for simultaneously locking and 'unloc ing several doors, comprising in combination with manual door latch ing mechanisms including latch elements, outside and inside latch actuating handles, shiftable interlock means adapted to be interposed in said mechanisms to operably connect said outside handles to said latch elements, said means adapted to be shifted to disengaged position for operably disconnectlatch elethe inside be actuateding said outside handles from said latches,.a-

source of electrical energy, locking and unlocking solenoids cooperating with said means to shift the same into operative and disengaged positions, a master lock, means associated therewith adapted to momentarily complete the circuit throu h said source of electrical energy to said loc ing and unlocking solenoids, and means operabl connecting the inside latch operating han les to said latch elements whereb the same ma be actuated when 0 rably isconnected rom said outside han es, and means actuated by said master lock for mechanically releasing said shiftable interlock means in one of the locks to cause movement thereof to disengaged position.

In testimony whereof I have hereunto subscribed my name at l Kokomo, Howard County, Indiana. 1 i

FAY BEAL. 1

erg to said locking and solenoids, 

